SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION
Abstract
A process is given for separating lanthanide rare earths from each other from an aqueous mineral acid solution, e.g., hydrochloric or nitric acid of a concentration of above 3 M, preferably 12 to 16 M, by extraction with a water- immiscible alkyl phosphate, such as tributyl phosphate or a mixture of mono-, di- and tributyl phosphate, and fractional back-extraction with mineral acid whereby the lanthanides are taken up by the acid in the order of increasing atomic number.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4117078
- Patent Number(s):
- 2955913
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- NSA Number:
- NSA-15-007437
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- United States
- Language:
- English
- Subject:
- CHEMISTRY; ACIDS; ALKYL RADICALS; BUTYL PHOSPHATES; HYDROCHLORIC ACID; NITRIC ACID; PHOSPHATES; RARE EARTHS; SEPARATION PROCESSES; SOLUTIONS; SOLVENT EXTRACTION; TBP; WATER
Citation Formats
Peppard, D F, and Mason, G W. SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION. United States: N. p., 1960.
Web.
Peppard, D F, & Mason, G W. SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION. United States.
Peppard, D F, and Mason, G W. Tue .
"SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION". United States.
@article{osti_4117078,
title = {SEPARATION OF RARE EARTHS BY SOLVENT EXTRACTION},
author = {Peppard, D F and Mason, G W},
abstractNote = {A process is given for separating lanthanide rare earths from each other from an aqueous mineral acid solution, e.g., hydrochloric or nitric acid of a concentration of above 3 M, preferably 12 to 16 M, by extraction with a water- immiscible alkyl phosphate, such as tributyl phosphate or a mixture of mono-, di- and tributyl phosphate, and fractional back-extraction with mineral acid whereby the lanthanides are taken up by the acid in the order of increasing atomic number.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1960},
month = {10}
}
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